momentous /məˈmentəs/ very important or serious, especially because there may be important results
odstępować n pozycję rezygnowac n z prawa do czegos zrzec się n tytułu oddać wladzę porzucić coś lub kogos opuścić kogoś wypuszczać coś z ręki zwalniać uchwyt
relinquish /rɪˈlɪŋkwɪʃ/ stop having something, especially when this happens unwillingly relinquish something to somebody She relinquished possession of the house to her sister.
relinquish sth to sb BrE /rɪˈlɪŋkwɪʃ formal) synonym give something up relinquish something He was forced to relinquish control of the company. They had relinquished all hope that she was alive